mirror of
https://github.com/silverstripe/silverstripe-widgets
synced 2024-10-22 17:05:54 +02:00
57 lines
1.6 KiB
PHP
57 lines
1.6 KiB
PHP
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<?php
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/**
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* Add this to ContentController to enable widgets
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*/
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class WidgetContentControllerExtension extends Extension {
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static $allowed_actions = array(
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'handleWidget'
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);
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/**
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* Handles widgets attached to a page through one or more {@link WidgetArea} elements.
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* Iterated through each $has_one relation with a {@link WidgetArea}
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* and looks for connected widgets by their database identifier.
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* Assumes URLs in the following format: <URLSegment>/widget/<Widget-ID>.
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*
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* @return RequestHandler
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*/
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function handleWidget() {
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$SQL_id = $this->owner->getRequest()->param('ID');
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if(!$SQL_id) return false;
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// find WidgetArea relations
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$widgetAreaRelations = array();
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$hasOnes = $this->owner->data()->has_one();
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if(!$hasOnes) return false;
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foreach($hasOnes as $hasOneName => $hasOneClass) {
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if($hasOneClass == 'WidgetArea' || is_subclass_of($hasOneClass, 'WidgetArea')) {
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$widgetAreaRelations[] = $hasOneName;
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}
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}
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// find widget
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$widget = null;
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foreach($widgetAreaRelations as $widgetAreaRelation) {
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if($widget) break;
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$widget = $this->owner->data()->$widgetAreaRelation()->Widgets(
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sprintf('"Widget"."ID" = %d', $SQL_id)
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)->First();
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}
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if(!$widget) user_error('No widget found', E_USER_ERROR);
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// find controller
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$controllerClass = '';
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foreach(array_reverse(ClassInfo::ancestry($widget->class)) as $widgetClass) {
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$controllerClass = "{$widgetClass}_Controller";
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if(class_exists($controllerClass)) break;
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}
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if(!$controllerClass) user_error(
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sprintf('No controller available for %s', $widget->class),
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E_USER_ERROR
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);
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return new $controllerClass($widget);
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}
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}
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